Let Z=2√3 - 2i a) Find z³ using polar form. Then express in rectangular form.

b)find the fourth roots of z and write in polar form.

please show work thank you! :)​

Delbert keeps track of total of the total number of points he earns on homework assignments, each of which is worth 60 points. at the end of the semester he has 810 points. write an equation for delbert’s average homework score a in terms of the number of assignments n.